Science
Across
- 3. the organism that is at the top of the food chain
- 4. a model showing how many organismis are at each food level
- 7. the water in the earths crust
- 8. a green liquid found in producers while traps energy from the sun
- 9. the increase of tempurature in the earths crust
- 11. the slow change in the biological community
- 16. materials that cause pollution
- 17. the process when water travelsthrough the roots of a plant and evaporates from the leaves
- 18. the accumulation of pollutants in organisms through levels in the food chain
- 19. a model that shows how food energy passes from one organism to another
- 20. the process when little tiny drops of water get formed into rain drops
- 22. the movement of water through a community
Down
- 1. any biotic and abiotic factors that control the numbers of induviduals
- 2. a process by witch an organism obtains energy by breaking down food like sugar
- 4. the process when a plant takes energy from the sun and makes food
- 5. water that travels into lakes and ponds
- 6. a web interconected food chains
- 10. all the harmfull materials put into the environment
- 12. the maximum number of induviduals in an environment
- 13. the process when water changes from being a gas into being a liquid
- 14. the process when liquid changes to gas vapour
- 15. a model showing how carbon is used in its ecosystem
- 21. the transfer of energy from the sun that passes to other organism